Customizable icons for all bitmap targets. (FS#7013)

http://www.rockbox.org/twiki/bin/view/Main/CustomIcons for info on format and how to load them


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13177 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 242 insertions, 19 deletions

diff --git a/apps/gui/icon.c b/apps/gui/icon.c
index ef6f61f94e..2cb0035ad7 100644
--- a/apps/gui/icon.c
+++ b/apps/gui/icon.c
@@ -7,7 +7,7 @@
  *                     \/            \/     \/    \/            \/
  * $Id$
  *
- * Copyright (C) Robert E. Hak(2002)
+ * Copyright (C) 2007 Jonathan Gordon
  *
  * All files in this archive are subject to the GNU General Public License.
  * See the file COPYING in the source tree root for full license agreement.
@@ -16,42 +16,265 @@
  * KIND, either express or implied.
  *
  ****************************************************************************/
-
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "inttypes.h"
 #include "config.h"
 #include "icon.h"
 #include "screen_access.h"
 #include "icons.h"
+#include "settings.h"
+#include "bmp.h"
+#include "filetypes.h"
+
+/* Quick and Dirty hack untill lcd bitmap drawing is fixed */
+#ifdef HAVE_REMOTE_LCD
+#include "lcd-remote.h"
+#endif
+
+
+#include <default_icons.h>
+#ifdef HAVE_REMOTE_LCD
+#include <remote_default_icons.h>
+#endif
+
+#define DEFAULT_VIEWER_BMP          ICON_DIR "/viewers.bmp"
+#define DEFAULT_REMOTE_VIEWER_BMP   ICON_DIR "/remote_viewers.bmp"
+
+/* These should robably be moved to config-<target>.h */
+#define MAX_ICON_HEIGHT 24
+#define MAX_ICON_WIDTH 24
+
+
+/* We dont actually do anything with these pointers,
+   but they need to be grouped like this to save code
+   so storing them as void* is ok. (stops compile warning) */
+static const void * inbuilt_icons[NB_SCREENS] = {
+        (void*)default_icons
+#ifdef HAVE_REMOTE_LCD
+      , (void*)remote_default_icons
+#endif
+};
 
-/* Count in letter positions, NOT pixels */
-void screen_put_iconxy(struct screen * display, int x, int y, ICON icon)
+static const int default_width[NB_SCREENS] = {
+      BMPWIDTH_default_icons
+#ifdef HAVE_REMOTE_LCD
+    , BMPWIDTH_remote_default_icons
+#endif
+};
+
+/* height of whole file */
+static const int default_height[NB_SCREENS] = {
+      BMPHEIGHT_default_icons
+#ifdef HAVE_REMOTE_LCD
+    , BMPHEIGHT_remote_default_icons
+#endif
+};
+
+#define IMG_BUFSIZE (MAX_ICON_HEIGHT * MAX_ICON_WIDTH * \
+                     Icon_Last_Themeable *LCD_DEPTH/8)
+static unsigned char icon_buffer[IMG_BUFSIZE][NB_SCREENS];
+static bool custom_icons_loaded[NB_SCREENS] = {false};
+static struct bitmap user_iconset[NB_SCREENS];
+
+static unsigned char viewer_icon_buffer[IMG_BUFSIZE][NB_SCREENS];
+static bool viewer_icons_loaded[NB_SCREENS] = {false};
+static struct bitmap viewer_iconset[NB_SCREENS];
+
+
+#define ICON_HEIGHT(screen) (!custom_icons_loaded[screen]?       \
+                             default_height[screen] :   \
+                             user_iconset[screen].height) \
+                            / Icon_Last_Themeable
+                            
+#define ICON_WIDTH(screen)  (!custom_icons_loaded[screen]?       \
+                             default_width[screen] :   \
+                             user_iconset[screen].width)
+                            
+/* x,y in letters, not pixles */
+void screen_put_icon(struct screen * display, 
+                       int x, int y, enum themable_icons icon)
+{
+    screen_put_icon_with_offset(display, x, y, 0, 0, icon);
+}
+
+void screen_put_icon_with_offset(struct screen * display, 
+                       int x, int y, int off_x, int off_y,
+                       enum themable_icons icon)
 {
-#ifdef HAVE_LCD_BITMAP
-    int width, height;
     int xpos, ypos;
+    int width, height;
+    int screen = display->screen_type;
     display->getstringsize((unsigned char *)"M", &width, &height);
-    xpos = x*CURSOR_WIDTH;
-    ypos = y*height + display->getymargin();
+    xpos = x*ICON_WIDTH(screen) + off_x;
+    ypos = y*height + display->getymargin() + off_y;
+
+    if ( height > ICON_HEIGHT(screen) )/* center the cursor */
+        ypos += (height - ICON_HEIGHT(screen)) / 2;
+    screen_put_iconxy(display, xpos, ypos, icon);
+}
 
-    if ( height > CURSOR_HEIGHT )/* center the cursor */
-        ypos += (height - CURSOR_HEIGHT) / 2;
-    if(icon==0)/* Don't display invalid icons */
-        screen_clear_area(display, xpos, ypos, CURSOR_WIDTH, CURSOR_HEIGHT);
+/* x,y in pixels */
+typedef void (*lcd_draw_func)(const fb_data *src, int src_x, int src_y,
+                      int stride, int x, int y, int width, int height);
+void screen_put_iconxy(struct screen * display, 
+                       int xpos, int ypos, enum themable_icons icon)
+{
+    fb_data *data;
+    int screen = display->screen_type;
+    lcd_draw_func draw_func = NULL;
+    
+    if (icon == Icon_NOICON)
+    {
+        screen_clear_area(display, xpos, ypos,
+                          ICON_WIDTH(screen), ICON_HEIGHT(screen));
+        return;
+    }
+    else if (icon >= Icon_Last_Themeable)
+    {
+        icon -= Icon_Last_Themeable;
+        if (!viewer_icons_loaded[screen] || 
+           (icon*ICON_HEIGHT(screen) > viewer_iconset[screen].height))
+        {
+            screen_clear_area(display, xpos, ypos,
+                          ICON_WIDTH(screen), ICON_HEIGHT(screen));
+            return;
+        }
+        data = (fb_data *)viewer_iconset[screen].data;
+    }
+    else if (custom_icons_loaded[screen])
+    {
+        data = (fb_data *)user_iconset[screen].data;
+    }
     else
-        display->mono_bitmap(icon, xpos, ypos, CURSOR_WIDTH, CURSOR_HEIGHT);
-#else
-    if(icon==-1)
-        display->putc(x, y, ' ');
+    {
+        data = (fb_data *)inbuilt_icons[screen];
+    }
+    /* add some left padding to the icons if they are on the edge */
+    if (xpos == 0)
+        xpos++;
+    
+#ifdef HAVE_REMOTE_LCD
+    if (display->screen_type == SCREEN_REMOTE)
+    {
+        /* Quick and Dirty hack untill lcd bitmap drawing is fixed */
+        draw_func = (lcd_draw_func)lcd_remote_bitmap_part;
+    }
     else
-        display->putc(x, y, icon);
 #endif
+#if LCD_DEPTH == 16
+        draw_func = display->transparent_bitmap_part;
+#else /* LCD_DEPTH < 16 */
+        draw_func = display->bitmap_part;
+#endif /* LCD_DEPTH == 16 */
+    
+    draw_func(  (const fb_data *)data,
+                0, ICON_HEIGHT(screen)*icon, 
+                ICON_WIDTH(screen), xpos, ypos, 
+                ICON_WIDTH(screen), ICON_HEIGHT(screen));
 }
 
 void screen_put_cursorxy(struct screen * display, int x, int y, bool on)
 {
 #ifdef HAVE_LCD_BITMAP
-    screen_put_iconxy(display, x, y, on?bitmap_icons_6x8[Icon_Cursor]:0);
+    screen_put_icon(display, x, y, on?Icon_Cursor:0);
 #else
-    screen_put_iconxy(display, x, y, on?CURSOR_CHAR:-1);
+    screen_put_icon(display, x, y, on?CURSOR_CHAR:-1);
 #endif
 
 }
+enum Iconset {
+    Iconset_Mainscreen,
+    Iconset_Mainscreen_viewers,
+#ifdef HAVE_REMOTE_LCD
+    Iconset_Remotescreen,
+    Iconset_Remotescreen_viewers,
+#endif
+};
+
+static void load_icons(const char* filename, enum Iconset iconset)
+{
+    int size_read;
+    bool *loaded_ok = NULL;
+    struct bitmap *bmp = NULL;
+    
+    switch (iconset)
+    {
+        case Iconset_Mainscreen:
+            loaded_ok = &custom_icons_loaded[SCREEN_MAIN];
+            bmp = &user_iconset[SCREEN_MAIN];
+            bmp->data = icon_buffer[SCREEN_MAIN];
+            break;
+        case Iconset_Mainscreen_viewers:
+            loaded_ok = &viewer_icons_loaded[SCREEN_MAIN];
+            bmp = &viewer_iconset[SCREEN_MAIN];
+            bmp->data = viewer_icon_buffer[SCREEN_MAIN];
+            break;
+#ifdef HAVE_REMOTE_LCD
+        case Iconset_Remotescreen:
+            loaded_ok = &custom_icons_loaded[SCREEN_MAIN];
+            bmp = &user_iconset[SCREEN_MAIN];
+            bmp->data = icon_buffer[SCREEN_MAIN];
+            break;
+        case Iconset_Remotescreen_viewers:
+            loaded_ok = &viewer_icons_loaded[SCREEN_REMOTE];
+            bmp = &viewer_iconset[SCREEN_REMOTE];
+            bmp->data = viewer_icon_buffer[SCREEN_REMOTE];
+            break;
+#endif
+    }
+    
+    *loaded_ok = false;
+    if (filename != NULL)
+    {
+        size_read = read_bmp_file((char*)filename, bmp, IMG_BUFSIZE,
+                                  FORMAT_NATIVE | FORMAT_DITHER);
+        if (size_read > 0)
+        {
+            *loaded_ok = true;
+        }
+    }
+}
+
+
+void icons_init(void)
+{
+    char path[MAX_PATH];
+    if (global_settings.icon_file[0])
+    {
+        snprintf(path, MAX_PATH, "%s/%s.bmp",
+                 ICON_DIR, global_settings.icon_file);
+        load_icons(path, Iconset_Mainscreen);
+    }
+    if (global_settings.viewers_icon_file[0])
+    {
+        snprintf(path, MAX_PATH, "%s/%s.bmp",
+                 ICON_DIR, global_settings.viewers_icon_file);
+        load_icons(path, Iconset_Mainscreen_viewers);
+        read_viewer_theme_file();
+    }
+    else
+        load_icons(DEFAULT_VIEWER_BMP, Iconset_Mainscreen_viewers);
+#ifdef HAVE_REMOTE_LCD
+    if (global_settings.remote_icon_file[0])
+    {
+        snprintf(path, MAX_PATH, "%s/%s.bmp",
+                 ICON_DIR, global_settings.remote_icon_file);
+        load_icons(path, Iconset_Remotescreen);
+    }
+    if (global_settings.remote_viewers_icon_file[0])
+    {
+        snprintf(path, MAX_PATH, "%s/%s.bmp",
+                 ICON_DIR, global_settings.remote_viewers_icon_file);
+        load_icons(path, Iconset_Remotescreen_viewers);
+    }
+    else
+        load_icons(DEFAULT_REMOTE_VIEWER_BMP, Iconset_Mainscreen_viewers);
+#endif
+}
+
+int get_icon_width(enum screen_type screen_type)
+{
+    return ICON_WIDTH(screen_type);
+}